game-development

[spring flame]

what is the best library for making python games to use in an asynchronous context?

[edgy arch]

Hi, did someone saw my question? Don't you love mathematics :P

[vagrant saddle]

both pygame and panda3d work fine with async

[potent ice]

wasabi2b is especially made for that

[tranquil girder]

https://cdn.discordapp.com/attachments/596647535913861120/1011058506092261416/rotating_castle.mp4

I wonder if I can turn this into a game mechanic somehow

[dawn quiver]

how do i add a timer to my game but its not like a for loop where it ticks down and the text keeps moving down, i just want it ticking down in 1 spot

[spring flame]

cool, I'll use pygame

[vagrant saddle]

btw with async you can run on web https://pygame-web.github.io/wiki/python-wasm/#main-loop-async

[cerulean citrus]

the problem was that i did not use shaders ☹️

[polar birch]

can u help me, i made a game with pygame and my player can be controled with the d,a for the x movement jeys, but when i multyplie both of the movement speeds with delta time, the left side goes slower then the right side

[zenith pendant]

Could you send code of your movement logic?

Sounds like a math error did you calculate it the same on both sides

[polar birch]

i can but the files are kinda big for discord

[zenith pendant]

Just copy the movement part over

[polar birch]

ok

and just saying the variables dx,dy are for TileBased collision detection so when i say dx += or -= then i mean move player

if keys[pygame.K_SPACE] or keys[pygame.K_w]:
self.velocity.y = -7 * dt

    if keys[pygame.K_d]:
        dx -= 10 * dt

    if keys[pygame.K_a]:
        dx += 10 * dt

and when i multiplie the acceleration the gravity goes upsidedown

if u want ill send the play's code

*player's code

nvm the right side is slower

[zenith pendant]

Does this also happen if you leave dt out ?

[polar birch]

it works fine

and i multiplie the dt without clock.tick but without dt i use clock.tick(FPS) FPS = 60

and the wierder thing that when i hold both of the keys the player stops

but it should go left(because right side is faster somehow)

i use dt like that: last_dt = time.time() dt = time.time() - last_dt

and i put it in the while loop

and i multyplied the dt by 60, i tried it without multiplying and i increesed the move values and its stillt he same

(i multiplie the dt by FPS)

ill send the player's code:

PGbuiltins is my library and its fine with the (vector2s at least)

i pep8 it with black

no tiles are in the list sp the collision detection isnt the problam

so*

[zenith pendant]

And without dt it works?
Because looking at it i couldnt find anything that would make it behave like this

[polar birch]

wdym

if u want i can send you my main code with the dt

i still didnt load a level

[zenith pendant]

The error would be in here im pretty sure, but i couldnt find anything from looking over it

[polar birch]

ok then ty for helping

im just cleaning he code to not create super long chat....

if you want i can send the code again

the*

[zenith pendant]

Maybe you just set some "(" wrong or something small like this

[polar birch]

oh and i cant send my PGbuiltins code because its 878 line of code and discord dont alow it

if you want i can call u and show u how to game is working with share screen

nvm ill just send a screenshot

im stuck on its development because of this stupid thing

nvm ill just leave it 😦

bye have a nice day

[cursive glacier]

Hello! Can someone help me installing pygame in Anaconda. I’m using this command in the terminal window:

conda install -c cogsci pygame

But doesn’t work
Btw, I’m using macOS

[old axle]

changed the appearnce of my snake game

what do you guys think? ^^^^^^^^^

[hollow inlet]

is there a formular that can be used to make a snake...
i need a chain of entites, that follow each other.

[edgy arch]

Hello, I need some help. Regarding the code:

mouse_x = -pygame.mouse.get_pos()[0]
#Player control takes (move x, move y, the x position of the mouse cursor)
player.control(0,0,mouse_x)
keys = pygame.key.get_pressed()
if keys[pygame.K_w]:
    player.control(2*math.cos(mouse_x), 2*math.sin(mouse_x), mouse_x)

When controlling the actual sprite wabbles and it does not go in the same direction in which I rotate it. Is anything strange in the code? I would like to use math formulas. (Not actual vectors in Pygame).

Thanks.

[unreal shale]

it looks really good @old axle

[knotty granite]

!resources

[frank field]

Resources

The Resources page on our website contains a list of hand-selected learning resources that we regularly recommend to both beginners and experts.

[ancient jetty]

hello, can someone help me with my game? im stuck.....

[tranquil girder]

Help with what?

[unique rapids]

https://kazabiteboltiz.itch.io/droidland-mage

Using the Ursina framework

[dawn quiver]

does anybody have a brick breaker file that they can send me?

for unity 3d

[potent ice]

Probably wrong discord server for this

[old axle]

@dawn quiver i did it

[dawn quiver]

YOOOO nice!!!!!

[old axle]

this is the code for it: ```py
if self.directions[0] in (RIGHT, LEFT):
leftright_square_label.draw(self.pos[0][0], self.pos[0][1], self.surface)

    if self.directions[0] in (UP, DOWN): 
        updown_square_label.draw(self.pos[0][0], self.pos[0][1], self.surface)

    for p, direction in zip(self.pos[::-1], self.directions[::-1]):

        try:
            if direction in (RIGHT, LEFT) and direction == predirection:
                leftright_square_label.draw(p[0], p[1], self.surface)
            
            if direction in (UP, DOWN) and direction == predirection:
                updown_square_label.draw(p[0], p[1], self.surface)
            
            if direction == UP and predirection == LEFT or direction == RIGHT and predirection == DOWN:
                bottem_left_square_label.draw(p[0], p[1], self.surface)
            
            if direction == UP and predirection == RIGHT or direction == LEFT and predirection == DOWN:
                bottem_right_square_label.draw(p[0], p[1], self.surface)
            
            if direction == DOWN and predirection == LEFT or direction == RIGHT and predirection == UP:
                top_left_square_label.draw(p[0], p[1], self.surface)
            
            if direction == DOWN and predirection == RIGHT or direction == LEFT and predirection == UP:
                top_right_square_label.draw(p[0], p[1], self.surface)
            
        except UnboundLocalError:
            if direction in (RIGHT, LEFT): 
                leftright_square_label.draw(p[0], p[1], self.surface)   
                
            if direction in (UP, DOWN): 
                updown_square_label.draw(p[0], p[1], self.surface)

        predirection = direction

[dawn quiver]

how does the snake look in action?

[old axle]

like this

[dawn quiver]

Awesome :D

[golden basalt]

i want to create a board game

particularly like chess

it's chushogi (12x12) variant of shogi (Japanese chess)

[dawn quiver]

nice

sounds like an interesting project for sure

[golden basalt]

any suggestions for libs, frameworks that can make board-game-making easy

[dawn quiver]

hmm, im not aware of any specific for board games, but pygame offers some utilities that should suffice
tons of chess games have been made using it(not too sure about shogi though)

[golden basalt]

chushogi is probably planned to come on https://lishogi.org/ along with other variants
though it for sure will be a fun game to create a program for

[dawn quiver]

these aren't board games, but i think this shows that it provides enough to be able to render chess/shogi

the core logic/engine itself would be separate from the graphics lib you use though!

Someone who was making a chess game using pygame recently:

[dawn quiver]

I see

I've seen shogi being mentioned in some shows, but I don't know anything more than that haha

Might give it a try some day

[golden basalt]

so first one should first build an "engine" that can work on text notation and calculate possible moves for pieces etc, and output that for the renderer.
implementing AI is the next hard step of course if one wants to ig

[dawn quiver]

seems like you got the idea!

coincidentally, im working on a board game too, implementing it in Rust though

[waxen hawk]

hello

im new here

and will love to know more about python and pygame

[ancient jetty]

Hmmm, since you ask It in #game-development i think you might want to make games, how far are you at python?

Because i suggest learning the basics and maybe make like a mini rock paper scissors game, or geuss the number rir smth

[versed cedar]

Hello, sorry for interrupting, I am currently trying to create an mp3 player using the kivy framework.
What is bothering me is how can I create an if condition that detects which audio is playing so it can pause it and play it again? I searched on internet but didn't find what interested me. Here is the code:

import kivy
from kivy.core.audio import SoundLoader
from kivy.uix.floatlayout import FloatLayout

kivy.require('2.0.0') # replace with your current kivy version !
from kivy.uix.button import Button
from kivy.config import Config
import subprocess


from kivy.app import App
from kivy.uix.label import Label

global button
global button0
button = Button(text='',  size_hint=(.20,.12), pos =(325, 275),background_normal = 'playbutton.png')
button0 = Button(text='',  size_hint=(.20,.12), pos =(150, 275),background_normal = 'pause.png')
global button1
button1 = Button(text='',  size_hint=(.10,.12), pos =(70, 275),background_normal = 'back.png')
global button2
button2 = Button(text='',  size_hint=(.10,.12), pos =(500, 275),background_normal = 'forward.png')
global buttonrandom
buttonrandom = Button(text='OPEN',  size_hint=(.10,.12), pos =(0, 27))
global layout
Config.set('graphics', 'resizable', True)
global sound
sound = SoundLoader.load(filename='C:\\Users\\myusername\\Desktop\\K-391 - Drop it (Original Mix).mp3')
global sound0
sound0 = SoundLoader.load(filename='C:\\Users\\myusername\\Desktop\\Electro House 2012 By K-391.mp3')

class MyApp(App):

    def build(self):
        layout = FloatLayout()

        button = Button(text='|>', size_hint=(.20,.12), pos =(325, 275))
        button0 = Button(text='||', size_hint=(.20, .12), pos=(150, 275))
        button1 = Button(text='<', size_hint=(.10, .12), pos=(70, 275))
        button2 = Button(text='>', size_hint=(.10, .12), pos=(500, 275))
        buttonrandom = Button(text='OPEN', size_hint=(.10, .12), pos=(0, 27))

 layout.add_widget(button)
        layout.add_widget(button0)
        layout.add_widget(button1)
        layout.add_widget(button2)
        layout.add_widget(buttonrandom)
        button.bind(on_press=self.press)
        button0.bind(on_press=self.stop)
        button2.bind(on_press=self.forwar)
        button1.bind(on_press=self.back)
        return layout

    def press(self,event):
        #sound = SoundLoader.load(filename='C:\\Users\\myusername\\Desktop\\K-391 - Drop it (Original Mix).mp3')
        if sound0 == None:
           sound0.play()
        if sound == None:
            sound.play()
    def stop(self,event):
        #sound = SoundLoader.load(filename="C:\\Users\\myusername\\Desktop\\K-391 - Drop it (Original Mix).mp3")
        sound.stop()
        sound0.stop()
    def forwar(self,event):
        sound.stop()
        sound0.play()
    def back(self,event):
        sound0.stop()
        sound.play()




if __name__ == '__main__':
    MyApp().run()

Here are screenshots:

When I click the ">", audio1 is playing, next thing I want is that when I click "||" button or "|>" to pause or play audio1. The same is for "<", but the audio2 is playing, I want only to play or pause audio2. I searched everywhere on the internet for that solution, but it didn't help. Could you please be kind to help if you want? In advance, thank you very much.

[rancid depot]

Please help

See #☕help-coffee

[shell scroll]

https://twitter.com/harmony_hunnie/status/1562933946144493568?s=20&t=_2nG97Pn6lNiNTQN9LaZGA

(｡◕‿◕｡) Harmony Honey (@harmony_hunnie)

Tiny Crate is now Open Source!
https://t.co/kN5mlCRds9
All the assets and code in this Godot 3.5 project are free to use. Get modding! (:

#GodotEngine #IndieDev #GameDev #OpenSource

▶ Play video

Twitter · Aug 25, 2022, 10:44 PM

[potent ice]

Are we a godot channel now? I guess the assets can be used for other projects, so I guess it's fine.

The assets seems to be made in Aesprite

[desert bobcat]

every box is 0 and the head of the snake is the length value and the tail is minus one each segment up until the end of the tail which would be 1 and once its 0 then its the back ground, once the head moves to a location then the rest of the body is subtracted by one

[hollow inlet]

Not really sure if I understand it correctly.
So the index of the head would decrease?
Using that iterator in some degree to move the snake with a slower speed in the direction of the head?

[desert bobcat]

123456789👄

The blank space is 0

So the next step for the snake I made above is this

0123456789👄

The snake just moved to the right and every number place is now down 1

[hollow inlet]

The fear I have is that either it becomes in some way a blob of objects or the snake separates itself due to speed.
It's ok if it sometimes gets bundled up, but I am trying to accomplish a snake with a tail that is visible at least most of the time.

The snake will also constantly move with a 2d velocity.

I think I better ask some math nerds.

[gentle falcon]

Can anyone here tell me how can I publish my pygame game? Is there any website that can allow me to publish my game for free?

[proper peak]

try itch.io

[crisp arrow]

hi, i'm making pong with python but it's weird

[lethal girder]

guys can someone tell me which book teach create games with python

[crisp arrow]

When i run it, the left paddle will go up with me just pressing and holding the key but with the arrow keys, if i just press and hold then it doesn't do continuously continue going in whichever direction it's going in

[crisp arrow]

https://www.google.com/search?q=pygame+books&rlz=1C1CHBD_enCA942CA951&oq=pygame+books&aqs=chrome..69i57j0i22i30l4j0i390.2070j0j7&sourceid=chrome&ie=UTF-8
some of these might help

[lethal girder]

thank you so much for your help

i will try this books

[crisp arrow]

honestly, i would say look at some online tutorials to get started with pygame and then just try and build stuff yourself to familiarize yourself with it. This is just how i would learn

[lethal girder]

honestly, i'm a web developer but I love games so I decided why not try to make games when I have free time

[crisp arrow]

you might be interested in https://pyscript.net/

[lethal girder]

I'll try it thank thank you

[lethal girder]

print(bored) if you want any time create website i'm always here

just send me i message and i'll help you

[crisp arrow]

thx for that

tbh i'm interested in web dev too

[crisp arrow]

i know a bit of html and css not as much as you tho so i'll let you know if i need help

[lethal girder]

Ok bay see you soon 👍

[snow hill]

is this Python-related ? 🙂

this is, no matter what :

https://mobile.twitter.com/disketflu/status/1552995002510344192

disketflu (@disketflu)

[THREAD] : RECREATE MINECRAFT IN PYHTON
In this thread I will show you how I have created a voxel game with procedural terrain generation and Minecraft’s main functions such as chunks management, placing and removing blocks
#python #harfang3d #minecraft #ProcGen #gamedev

Twitter · Jul 29, 2022, 12:30 PM

[shell scroll]

not specifically haha

thats rad!

[vagrant saddle]

there's also pygame-script which is more oriented toward games and performance/mobile https://pygame-web.github.io and also brython a full javascript implementation of python3+

[granite snow]

Can you use separating axis theorem using both left and right normals?

[quick bramble]

Can someone send me a course about pygame?

[small maple]

https://www.mygreatlearning.com/academy/learn-for-free/courses/pygame

hopefully its english

[clever ice]

anyone know a keyboard detecting module that replit knows

like something I can import to detect button presses

[gentle falcon]

Also do you know of any website where I can just upload my pygame code and then can share the link to any person who can run it and see how my game works!

[proper peak]

Uhh, just upload it on dropbox or something, I guess?

[dawn quiver]

You want them to be able to run it on the browser?

That is entirely possible now thanks to @vagrant saddle

For example: https://pmp-p.github.io/pygame-pychess-wasm/index.html

[echo kite]

Did you try pyautogui??

[clever ice]

no but pygame worked

[echo kite]

Cool

[gentle falcon]

not exactly I meant if I want to share my game with someone or show them what I have built I could just send a link of website where they can run my game and see how it works.

[vagrant saddle]

you can do that with pygbag + itch.io , selecting html5 game uploading your web.zip and it will give you a link + an optionnal password for running the game, they can be run fullwindow or in a iframe, some demos here https://itch.io/c/2563651/pygame-wasm how to here https://pygame-web.github.io/

[zinc depot]

can anyone help me with pip?

i cant install it

it says "Python"

and doesnt work

[celest breach]

Are you trying to get pip?

[zinc depot]

yup

[celest breach]

I think you have to get it manualy from pip.com

[tranquil girder]

no...

there's option to install it when you install python

you can also run python -m ensurepip --upgrade

[celest breach]

Pypi.org

[torn jackal]

hi, i am making a game but i would like the window be in FULSCREEN. The problem is, not everyone have the same screensize. How could i do for manage to adapt my game at every screens ? mention if u can help me, thanks 🙂

[celest breach]

Just say pygame.FULSCREEN where you identfy screen, it should just go full screen no matter what size is ur screen

[torn jackal]

Yes I finnaly found but thank u

[celest breach]

No problrem

[old axle]

which death looks better?

this one^^^

or this one^^^

[tranquil girder]

you should watch this: https://www.youtube.com/watch?v=OdVkEOzdCPw&ab_channel=MasahiroSakuraionCreatingGames

[old axle]

thanks

actully a super interesting and informative video

[tame patio]

Hey 👋, I am making a game in arcade and completed a level. I wanted to know would it be better using views for each levels or should I just use methods in a single view

[crimson onyx]

how can I start game development?

[vagrant saddle]

i'd suggest discovering pygame

[crimson onyx]

Ight thx

[celest breach]

pygame is good for starters but i don't thinK you can get super creative with it, like making 3d things is impossibly hard, so if you are just starting coding yes, pygame is a very good choice, but if you like to be coding games professionally i suggest maybe use pygame to learn the simple things and than code on things like: C# or C++

[crimson onyx]

Oh- thx for the info, i will keep that in mind

[celest breach]

no problem

[keen phoenix]

I don't know if this is a good server to ask this question but I haven't found any other discord server to ask it in

Hello smart people! So I am interested in FreePIE as I it is very helpful for some things and I don't know if it has support for Riftcat VRidge, does anybody know any plugins that can achieve that? Thanks!

I need to use it to read the orientation of the virtual headset for proper positional tracking

[winter mist]

do anyone know how to add a displayname on top of a rectangle in python with pygame?

def draw(self, win):
        pygame.draw.rect(win, self.color, self.rect)
        font = pygame.font.Font('freesansbold.ttf', 15)
        DisplayNameText=font.render(str(os.environ['COMPUTERNAME']), 1, white)
        text_rect = DisplayNameText.get_rect(bottom = self.rect.top)
        win.blit(DisplayNameText, text_rect)

this is from my player class there im creating the player object, i tried to make a code that would add a displayname but it would not work.

[random cave]

Having some issues with the snake game. It dowsn't run.

properly

[noble socket]

why does pygame need a rectangle object to draw a rectangle but not the same for lines and circles

[potent ice]

Try running with python mygame.py

[random cave]

Tried. Didn't work. Same issue.

[potent ice]

Not really used turtle much, but I would guess your program just starts and completes immediately? Maybe look at some other examples using turtle and compare.

There's no errors happening here. The program just closes.

Usually, a lack of turtle. mainloop() , or one of its variants, will cause the window to close because the program will exit, closing everything. turtle. mainloop() should be the last statement executed in a turtle graphics program

[random cave]

Thanks. It worked.

[potent ice]

Call this at the end I guess : https://docs.python.org/3/library/turtle.html#turtle.done

Working with a window can be a bit confusing. Usually you need to enter an event loop by calling some function to keep the window open or the program exist immediatly

What you did before was drawing something and then close the window because the program was done.

I think done() and mainloop() are the same

@random cave just making sure you saw this

[spark river]

hello guys, I am a beginner in this field. I want to make a video game like Yu gi oh, with a hub where everybody could create a game and invite his friend to play against. I have no problem making the front, but I am stuck into making the backend, does anybody have some ressources to learn how to make a backend for a game?

it can be outside python, just the theory would be enough

thanks in advance

[potent ice]

Looks like a game you can make with pure http or websocket backend if I'm not wrong

The server would store and know the players "items" and the players state

Actions will sent to the server by the player and the server responds. You need to make sure that the player are in the right state before you accept the actions. (spoofing actions when you are not allowed to do them is not an uncommon issue in online games)

Like in a card game you suddenly play a card you don't really have.

or you spawn items on yourself.

[spark river]

oh I see

[spark river]

I've never used any of these objects/protocols

can you give me some links to learn?

[vagrant saddle]

i think it could be something like these buzzwords ( i did not read article) https://medium.com/@iftimiealexandru/from-zero-to-hero-with-webrtc-in-javascript-and-python-in-small-snippets-of-code-part-4-daec44e8cf71

probably if you use pygame you can even run everything inside browser

[spark river]

oh okay

thank you so much

[zenith sandal]

I am using ursina engine if that helps at all, but for a while i've been trying to fix this issue with 360 movement using lerping that causes it to totally readjust and turn the opposite direction to turn again. it turns correctly, but once getting to 270 degrees it just goes all the way around to the other side and not using the shorter route.

        input_vector = Vec2(
            (held_keys['d'] - held_keys['a']) or held_keys['gamepad left stick x'], (held_keys['w'] - held_keys['s'] or held_keys['gamepad left stick x']))
        self.angle = atan2(input_vector.x, input_vector.y)
        direction = Vec2(sin(self.angle), cos(self.angle))

        if input_vector != 0:
            self.position += direction * time.dt * pSpeed

        self.angle = atan2(input_vector.x, input_vector.y)
        self.rotation_z = lerp(self.rotation_z, degrees(self.angle) if degrees(
            self.angle) < 270 else (degrees(self.angle) == 360), 0.2)

That is my rotation and input for movement and rotation

self.rotation_z = lerp(self.rotation_z, degrees(self.angle) if degrees(
            self.angle) < 270 else (degrees(self.angle) == 360), 0.2)

Here is the issue part. I have no clue why its using the longer path instead of the shorter path, nor how to make it use the shorter path.

[tranquil girder]

What if you just lerp the input vector instead? Lerping rotation can be complicated

e = Entity(model='quad', z=-1)
e.direction = Vec3(0,0,0)

def update():
    input_vector = Vec3((held_keys['d'] - held_keys['a']), (held_keys['w'] - held_keys['s']), 0).normalized()
    e.direction = lerp(e.direction, input_vector, .2)
    e.look_at_2d(e.position + e.direction)

[zenith sandal]

Thank you, that was a really good idea. I changed some stuff up a bit to make it work with my code and its smooth now

[light sluice]

Does anyone know how I can make a non linear terrain in something like arcade?

So far all the levels I have made are using sprites for the terrain, which makes me wonder if the only way to go about it is to make your own sprites and terrain

[light sluice]

think of something like hill climb racing, where you have an uneven terrain

[boreal oriole]

Hi all, i'm looking for a lib that can set xinput values for buttons and axises on a controller. I've found a few xinput libs out there, but they all see to be xinput readers for overlays or for reading values. Anyone familiar with a way to control/alter the xinput outputs?

[carmine valve]

is there a way to convert pygame into exe and prevent anyone from stealing the code? 💀

[dawn quiver]

Not if they know what Python version and some other pieces of data was used to build your game.

If you don't want people to "steal"/see your code, don't publish it online

[carmine valve]

😔

[cobalt narwhal]

can anyone help me with a project

i am working on to create new levels

ping me or dm me

[vagrant saddle]

try that https://gist.githubusercontent.com/pmp-p/bacf52d8caebfef88870c1cb80bc3c34/raw/9509fd2f9c425c9aa0b06df872a42c9ae37b29e5/tui.py

[vagrant saddle]

but if you can avoid curses you'll have web compatibility

with pyscript(pyodide) or pygame-script(cpython)

you can have a full window xterm on web to run your python code https://pygame-web.github.io/archives/0.2.0/pythons.html

[mental sinew]

hey guys

[dawn quiver]

I want to start with pygame, is it the best choice ?

[silk hinge]

How do I render SVGs in pygame? Do I need to write a shader or something?

[vagrant saddle]

you just display them like normal bitmap, recent pygame builds have svg support

[vagrant saddle]

it is certainly not a bad choice

[silk hinge]

wait so I have to find some library to convert the SVGs into bitmaps and then use some pygame function?

[vagrant saddle]

no it does it for you

SDL2 has nanosvg renderer incorporated

[silk hinge]

so where do I find this functionality?

[vagrant saddle]

you need to test the build for it

i don't remember which version introduced it exactly

i think it was with SDL2_image 2.5+

[silk hinge]

so the build that supports svg has not been properly released

[vagrant saddle]

it does depend on underlying SDL2 not just pygame build

ymmv

[dawn quiver]

So what's the best

[vagrant saddle]

tbh the one you will like more and feel comfy with

a tool must not hurt you

[silk hinge]

so what do I do now

where can I look to find out how to install this new build

[vagrant saddle]

let me see

[vagrant saddle]

try here https://github.com/pygame/pygame/releases

[dawn quiver]

You can just pip install it.

pip install pygame

Here's me loading and rendering an svg

using Pygame 2.1.2 (latest stable pypi release)

import pygame 

pygame.init()
screen = pygame.display.set_mode((500, 500))

img = pygame.image.load("xmas.svg")

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            raise SystemExit

    screen.fill("black")
    screen.blit(img, (0, 0))

    pygame.display.flip()

As pmp-p mentioned, you just load it like any other image

[silk hinge]

that's convenient

[silk hinge]

how would I find out in what update that was added in

I don't see anything about SVG

[vagrant saddle]

because it's internal to SDL2

ask on pygame discord some folks may know exactly when SDL2 image was upgraded

i only know that wasm build always has it

[dawn quiver]

https://www.pygame.org/docs/ref/image.html#pygame.image.load

It mentions that it is supported here

[silk hinge]

ahh ok

[vagrant saddle]

ho i did not test pnm

[dawn quiver]

i didnt even know it supported pnm haha

[silk hinge]

what is pnm

[vagrant saddle]

pnm is a text format image that's great for web because you can download it from anywhere synchronously

binary files are all problematic on web

[silk hinge]

ah cool

though why are binaries problematic on the web?

[vagrant saddle]

browser restrictions so dev does not block pages while getting megabytes of data

imagine a dev working on optic fiber link , and end user is on 3G

[silk hinge]

but how does text even fix that

isn't ascii text basically just bytes

[vagrant saddle]

haha maybe but webserver tell browsers what files really are in headers ( content-type: )

[vagrant saddle]

it does not, but at least you can get your image in a .txt if you want regardless of (sometimes incredibly akward ) browser decisions

[silk hinge]

ahh so the web browser automatically splits apart binary files that are being transferred but not with text files?

[vagrant saddle]

more like it forbids you to download binary files without special flags and servers all allowing your client and domain to do it

very complicated stuff https://scotthelme.co.uk/coop-and-coep/

[silk hinge]

are you an expert in security?

[vagrant saddle]

nope but i hit those restrictions when running pygame on web

[silk hinge]

oh wow

[silk hinge]

Why is the SVG image that I blit on to the window blurry?

import pygame 

pygame.init()
screen = pygame.display.set_mode((500, 500))

img = pygame.image.load("example.svg")
width, height = img.get_size()

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            raise SystemExit

    screen.fill("black")
    screen.blit(pygame.transform.scale(img, (width*2, height*2)), (0, 0))

    pygame.display.flip()

@dawn quiver

[dawn quiver]

well you scale it to a higher resolution than it is

when it becomes a surface, what image format it was before is irrelevant

if you are using svgs for the scalability, you might want to scale the original image itself and then use that

[silk hinge]

how do I do that?

[dawn quiver]

idk, id assume you are familiar with editing svgs

[silk hinge]

oh you mean the metadata describing the size

[dawn quiver]

yeah probably

[silk hinge]

@dawn quiver so I have to open the file, edit the meta tags programmatically, close it, load the image into pygame, and display it?

[dawn quiver]

i suppose that is a way, you might want to ask around in pygame community tho, some of them may know how to take advantage of svgs with pygame in relation to scalability in a better way

do you need a link to the server?

[silk hinge]

yes please

"send me, heimdall"

[dawn quiver]

discord.gg/pygame

There you go

[silk hinge]

holy, that's neat

[dawn quiver]

a level editor and a super mario clone i made in pygame work still in progress

[fickle fulcrum]

Hi, did something have interesting videos / documents about multiplayer game ? 😋 I would like to learn how to make them with the best structures 😁

[lucid rune]

interesting

[torn jackal]

hello guys, i'd like make a tab on a lot of lines of code. do u know a way to dont do it manually ?

mention if u can help, thanks

I finally found by myself : select ur block of code and press Ctrl + [

[gentle bay]

Hey I was wondering if anyone knew a good tutorial on Pong with Pygame that's for more experienced programmers, something that uses hitboxes, so i guess just pong if it wasnt made a bazillion years ago

edit: remembered google is very much a thing

[vagrant saddle]

if by hitboxes you mean colliderect there's this one https://pygame-web.github.io/showroom/pygame-scripts/org.pygame.touchpong.html

[grim folio]

I made a simple blackjack game.

https://paste.pythondiscord.com/ukiqezinob

[grim folio]

You can also press Tab instead of Ctrl + [

[karmic tiger]

Question In What website I could learn pygame commands?

[karmic tiger]

pls better quality

[grim folio]

😅 It is a good qulaity video.

[karmic tiger]

:/

[elder flax]

anyone know how to make the loop for music

I'm using pygame

[dawn quiver]

There are some options, but not a lot of them also teach Python from the ground up. Are you comfortable with Python?

[karmic tiger]

uhh yesz

pretty well

[karmic tiger]

Yes It's way more easier than Java

[dawn quiver]

Alright then,

RealPython is a pretty good bet, https://realpython.com/pygame-a-primer/
Covers some basic utilities, important concepts and what not that shouldn't be hard to grasp if you are familiar with the language

[full wren]

How could I make a save for the player ?
serializing ?
would like to make some checkpoints in the game (auto), that saves the variables values, and if it's possible, make a jump in the code so the player could get back where the last checkpoint saved the data

[dawn quiver]

Depends, is your game entirely local?

[celest breach]

i have a question, so i have a .exe file made with pyinstaller and i want to change the icon for that exe file but i can't make the exe file again with using the --icon="icon location" command because when i do it will just give me a file called "noneexe"

[shell bone]

Can anyone teach me 3D camera and 3D matrix implement in pygame?

[quasi patrol]

can someone help me with sprite sheets

[knotty valve]

hi, i know im not typing in the right channel but couldnt find a better one. i am a beginner on python and i want to get better to make games using python, if anyone can give me free courses i would really appreciate it, thank you <3

[smoky stump]

can somebody help me?

import pygame
from sys import exit

#important Variables
pygame.init()
screen = pygame.display.set_mode((1000, 500))
pygame.display.set_caption("GAME")

#Variables
#Player
player = pygame.draw.rect(screen, "#93E9FF", [500, 250, 40, 40])
player_rect = player.get_rect(center = (500, 250)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()

    pygame.display.update()

line 12 it does not work

[smoky stump]

https://www.youtube.com/watch?v=AY9MnQ4x3zk

[smoky stump]

u understand the basics of python?

[knotty valve]

kind of

yeah

i pretty much know the basics

[smoky stump]

ok

[knotty valve]

i watched that mosh guy's 6 hour tutorial

im on like hour 3

[smoky stump]

like till OOPS

ok

so when u watched his tutorial

watch this from clear code

https://www.youtube.com/watch?v=AY9MnQ4x3zk

import pygame
from sys import exit

#important Variables
pygame.init()
screen = pygame.display.set_mode((1000, 500))
pygame.display.set_caption("GAME")

#Variables
#Player
player = pygame.draw.rect(screen, "#93E9FF", [500, 250, 40, 40])
player_rect = player.get_rect(center = (500, 250)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()

    pygame.display.update()

line 12 isn't working

can somebody help me?

[round obsidian]

@smoky stump You're missing a ) at the end of that line, look closely

[smoky stump]

it does not not work either

AttributeError: 'pygame.Rect' object has no attribute 'get_rect'

its giving me this error

[untold sphinx]

get_rect is used to return a rectangle object from an image.
You didnt use any image. You just created a rectangle

get_rect is used when working with images

[smoky stump]

ohhhhhh

ok

so how do i center the position then

??

@untold sphinx?

?????

[untold sphinx]

pygame.rect.move_ip

[smoky stump]

thats it?

[untold sphinx]

ya

y = pygame.rect.move_ip(arg1,arg2)

[smoky stump]

what do i put in as paramters?

integers?

tuple?

List?

[untold sphinx]

use pygame.rect.move()

it can take int

[smoky stump]

i am confused rght now

[untold sphinx]

There are two methods

var = pygame.rect.move(arg1,arg2)
//Here arg1 and arg2 are integers

[smoky stump]

coordinates?

[untold sphinx]

2-
pygame.rect.move_in(arg1,arg2)
//It takes the var object itself too

[untold sphinx]

ya

[smoky stump]

which one is the best

?

[untold sphinx]

move_ip if you are making classes
and move if you are not doing oop
also syntax for your code will be
player = pygame.Rect.move(player,100,100)
(1st arg is the rect object and others are its coords)

[smoky stump]

@untold sphinx thnks

[untold sphinx]

np

[smoky stump]

wait

i ran the code

but

topleft corner was in the at those coorditanes

i want the center of the rectangle to be in those coorditanes

[lusty wasp]

what is the best library?

[shell bone]

Pygame

[lusty wasp]

OK THANKS

[shell bone]

No problem

[finite solar]

Does anyone get this problem when trying to freeze numba on linux? Is there a solution? https://stackoverflow.com/questions/73494658/building-the-setup-py-file-in-cx-freeze-gets-me-this-error-no-such-file-or-dir

[wide mist]

Is pycharm a good platform or else anything good other than that?

[dawn quiver]

I assume since you are in the game development channel you are asking whether it is good for game development specifically?

well, whatever editor you are used to for Python is a good choice for game development

Some really good game devs like dafluffypotato used to use IDLE at some point, and made great looking games nevertheless

Pycharm is nice, yeah

its debugger specifically can help break the project down into steps and see whats going on

[edgy arch]

Hello, can someone help: This is my current code:

import math
import pygame


class Player(pygame.sprite.Sprite):
    BLACK = (0,0,0)

    def __init__(self,screen):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load("./sprites/sprite.png").convert()
        self.image.set_colorkey(self.BLACK)
        self.image = pygame.transform.scale(self.image, (64, 64))
        self.rect = self.image.get_rect()
        self.rect.center = (1024 / 2 , 768 / 2)
        pygame.draw.line(screen, (0, 0, 0), (0, 0), (100, 100))
        pygame.display.flip()
        self.image_clean = self.image.copy()
        self.rot = 90

    def update(self):
        self.image = pygame.transform.rotate(self.image_clean, self.rot)

def main():
    pygame.init()
    pygame.mixer.init()
    screen = pygame.display.set_mode((1024, 768))
    pygame.display.set_caption("Raycaster")
    clock = pygame.time.Clock()
    white = (255,255,255)

    player = Player(screen)
    player_rot = 0
    all_sprites = pygame.sprite.Group()
    all_sprites.add(player)

    running = True
    while running:
        screen.fill(white)
        all_sprites.update()

        all_sprites.draw(screen)
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
        mouse_x = pygame.mouse.get_rel()[0]
        if mouse_x < 0:
            player_rot = 3
        if mouse_x > 0:
            player_rot = -3
        if mouse_x == 0:
            player_rot = 0
        print(mouse_x)
        player.rot += player_rot
        keys = pygame.key.get_pressed()
        if keys[pygame.K_w]:
            player_cos = 2*math.cos(player.rot)
            player_sin = 2*math.sin(player.rot)
            player.rect.x = player.rect.x + player_cos
            player.rect.y = player.rect.y + player_sin
  
        clock.tick(60)
        pygame.display.update()
    pygame.quit()
    quit()
if __name__ == '__main__':
    main()

The problem is that when moving the mouse cursor, the sprite turns which is OK. But it does not move in the direction which is looking. It goes in a random direction.

Does any one spot a problem in my code?

Thank you.

[snow hill]

https://twitter.com/astrofra/status/1568877775892713474

Astrofra (@astrofra)

OK, while fixing a couple of things on the Linux (OpenGL, actually) version, I asked a colleague to convert the submarine scene from #HARFANG3D to #Blender3D 😎
She did a great work I want to share with you ⤵️
#gamedev #demoscene

Twitter · Sep 11, 2022, 8:23 AM

[grim copper]

I just posted my question on stackoverflow because its too big for discord, :-https://stackoverflow.com/q/73677993/16004995
Im sorry if its against the rules

[vagrant saddle]

probably would have better matched https://gamedev.stackexchange.com

[rotund quail]

I followed a tutorial, and customized the code a bit by myself. I decided i wanted to learn Python so I started like 2 or 3 days ago. I made this pong game:

import turtle

wn = turtle.Screen()
wn.title("Optimized - Pong")
wn.bgcolor("black")
wn.setup(width=800, height=600)
wn.tracer(0)

paddle_a = turtle.Turtle()
paddle_a.speed(0)
paddle_a.shape("square")
paddle_a.color("white")
paddle_a.shapesize(stretch_wid=5, stretch_len=1)
paddle_a.penup()
paddle_a.goto(-350, 0)

paddle_b = turtle.Turtle()
paddle_b.speed(0)
paddle_b.shape("square")
paddle_b.color("white")
paddle_b.shapesize(stretch_wid=5, stretch_len=1)
paddle_b.penup()
paddle_b.goto(350, 0)

ball = turtle.Turtle()
ball.speed(0)
ball.shape("square")
ball.color("green")
ball.penup()
ball.goto(0, 0)
ball.dx = 0.2
ball.dy = 0.2

def paddle_a_up():
    y = paddle_a.ycor()
    y += 20
    paddle_a.sety(y)

def paddle_a_down():
    y = paddle_a.ycor()
    y += -20
    paddle_a.sety(y)

def paddle_b_up():
    y = paddle_b.ycor()
    y += 20
    paddle_b.sety(y)

def paddle_b_down():
    y = paddle_b.ycor()
    y += -20
    paddle_b.sety(y)

wn.listen()
wn.onkeypress(paddle_a_up, "w")
wn.onkeypress(paddle_a_down, "s")
wn.onkeypress(paddle_b_up, "Up")
wn.onkeypress(paddle_b_down, "Down")


while True:
    wn.update()
    ball.setx(ball.xcor() + ball.dx)
    ball.sety(ball.ycor() + ball.dy)

    if ball.ycor() > 290:
        ball.sety(290)
        ball.dy *= -1

    if ball.ycor() < -290:
        ball.sety(-290)
        ball.dy *= -1
    
    if ball.xcor() > 390:
        ball.goto(0, 0)
        ball.dx *= -1

    if ball.xcor() < -390:
        ball.goto(0, 0)
        ball.dx *= -1

    if ball.xcor() < -330 and ball.ycor() < paddle_a.ycor() + 50 and ball.ycor() > paddle_a.ycor() - 50:
        ball.dx *= -1
    elif ball.xcor() > 330 and ball.ycor() < paddle_b.ycor() + 50 and ball.ycor() > paddle_b.ycor() - 50:
        ball.dx *= -1

I still need to add the scores, and fix a few ball glitches

But the problem is:

I dont know how to make the paddless smoother

they keep adding by 20 pixels

but I want to make them smoother

I dont know if it could work, but i could try to increase the speed of the paddles, and decrease the pixel increase amount

These are the functions I made:

please suggest changes 🙂

def paddle_a_up():
    y = paddle_a.ycor()
    y += 20
    paddle_a.sety(y)

def paddle_a_down():
    y = paddle_a.ycor()
    y += -20
    paddle_a.sety(y)

def paddle_b_up():
    y = paddle_b.ycor()
    y += 20
    paddle_b.sety(y)

def paddle_b_down():
    y = paddle_b.ycor()
    y += -20
    paddle_b.sety(y)

wn.listen()
wn.onkeypress(paddle_a_up, "w")
wn.onkeypress(paddle_a_down, "s")
wn.onkeypress(paddle_b_up, "Up")
wn.onkeypress(paddle_b_down, "Down")

[dawn quiver]

damn soviet union knows python 💀

[tranquil girder]

https://github.com/pokepetter/ursina/blob/master/samples/fps.py

[tranquil girder]

just?

[crisp helm]

hey

can u guys recommend a good game engine for python? (except pygame)

[hollow jackal]

Hello, if I want to make a 3d game what module should I use? I'm seeing pygame, ursina, and panda3d but idk which ones best

[crisp helm]

i think pygame is only 2d

[vagrant saddle]

you can draw wireframe with pygame if the gpu has no GL support

[sweet shard]

Ursina if you want something high level. Panda3d if Ursina isn't giving you enough control

[serene spear]

    def __init__(self, data = [1.0, 2.0, 3.0]):
        self.data = data

items = [item(), item(), item()]

for i in range(10):
    for n_item in items:

        item_changed = item()

        item_changed = n_item
        item_changed.data[0] = n_item.data[0] + 3.0

        print("item_changed is ", item_changed.data[0])
        print("item is ", n_item.data[0]) ```
May someone explain why the n_item is also being modified?

[vagrant saddle]

just do ```py
class item:
def init(self, data = None):
if data is None:
data = [1.0, 2.0, 3.0]
self.data = data

[vagrant saddle]

in init data is assigned the same mutable

[celest breach]

hello, i have a question, i made this program that tells you the apps that are running in you pc:

cmd = 'powershell "gps | where {$_.MainWindowTitle } | select Description,Id,Path'
proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
for line in proc.stdout:
    if not line.decode()[0].isspace():
        print(line.decode().rstrip())

but when use the output, so line.decode().rstrip(), it will put all the information in one line, how can i fix that

[junior forum]

what do you guys think of my first game https://gist.github.com/CoolGuyBraydan/16258d999e2929f9f3888b0f40d06564

[frank field]

Hey @past bone!

It looks like you tried to attach a Python file - please use a code-pasting service such as https://paste.pythondiscord.com

[past bone]

https://paste.pythondiscord.com/unepewuzec thoughts? my first pygame, took me 2 days to complete but i still got there (Was looking at a tutorial for part of the code)

[vagrant saddle]

hard to tell without assets, codewise i'd say use only one update loop and make menu / game state function

and it looks a lot like this one https://github.com/shorouq-alzaydi/Space-Shooter-Game-

[celest breach]

does anyone know how to make this code return a list:

cmd = 'powershell "gps | where {$_.MainWindowTitle } | select Description'
proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
for line in proc.stdout:
        names=line.decode().rstrip()

[vagrant saddle]

maybe look at how https://pypi.org/project/psutil does

[celest breach]

ok ty

[past bone]

yea that’s actually the guy i watched the tutorial off of. i don’t really code in pygame but i decided to try it out tho

[pliant inlet]

Hi Guys

[harsh oyster]

i need someone who want to be in a beginner group who also use Godot

[quasi minnow]

@harsh oyster i'm in

[harsh oyster]

dm me

[hollow jackal]

anyone know how I can make shift toggle between two actions in ursina, or an ursina discord server?

def input(key):
    if key == "shift":
        camera.x=.5

i want it to be so shift can set camera.x to .5 and 0, toggling between eachother

[tranquil girder]

you can use an if statement:

def input(key):
    if key == "shift":
        if camera.x == 0:
            camera.x = .5
        else:
            camera.x = 0

[hollow jackal]

tysm

[vagrant saddle]

now you can try it online, i changed the code a bit regarding what i said earlier just look at the html source https://pygame-web.github.io/showroom/pygame-scripts/org.space.shooter.html

[languid pasture]

working on a game and wanting suggestions of what ||weapons|| to add, already have ||pistol|| rasing base damage to 20, and R.B.G.9000, rasing base damage to 75 (max) any suggestions?

[dawn quiver]

Probably add melee weapons, like swords

[languid pasture]

@dawn quiver Cool, that sound like a good idea, thanks

[fallow glade]

What kinda game?

[languid pasture]

@fallow glade no real theme, it can be anything

[fallow glade]

Molotov cocktail which leaves a fire hazard for a duration on the object/location that damages it and nearby stuff

[knotty pike]

slingshot would be fun

[languid pasture]

okay, cool idea

I need some ores to make into armor, currently have iron ore, raises defense to 5, extreme ore, raises defense to 10 (max), Any suggestions?

[full wren]

yeah

no graphic interface

all in the command box

[meager plover]

Is there any efficient way to slow down animations in arcade? As far as I know, the best way is to just have more individual frames and just skip through each one by increments to make it seem as if the animation is slowing down or something. E.g play frame 2, then frame 6 , then 10 etc.. to add that slowed effect or something

Actually found a somewhat solution by passing a custom delta_time to the update_animation() for that specific sprite, but if anyone has any better ideas do lemme know

[chilly vine]

If you're making a game then should you have a game loop for the main menu, and then when you start a game, it calls a function with its own separate loop? Or is that bad code and there should only be one loop?

[meager plover]

The most most simplest way I don't know how I only just discovered, was to just bootleg what the docs had with how they handle their animations. Just index an array, but to slow down the animation instead of increment +=1, increment +=0.5 or something, then when accessing the array just use round(increment). So way the same frame will be used twice as both 0.5 and 1 rounds to 1

Now for an expresso

[meager plover]

Good question, I spent ages trying to figure this out but never understood it. At least in arcade, as long as I never used any type of sleep() or severely blocking calls I could run as much threads and processes as I wanted to in the background in a continuously loop without any obstructions

[chilly vine]

It will all be one thread. It will be like: the main menu function calls the game function and waits for it to finish.

And both have their own loops

[rotund quail]

whats up fatasses

[dawn quiver]

As hsp suggested, <@&831776746206265384>
#game-development message

[valid wadi]

!warn 1007746855179923498 "whats up fatasses" is a totally inappropriate way to speak on our server.

[frank field]

:incoming_envelope: :ok_hand: applied warning to @rotund quail.

[median socket]

made this game today its pretty flawless especially in terms of graphics 🙂

[rotund quail]

That's really good

[quasi dome]

Hello

Is it possible to make dynamic lighting in pygame?

For 2D game

[vagrant saddle]

probably maybe look at https://github.com/DaFluffyPotato/pygame-shadows

[quasi dome]

hmm

oke

thankyou

[snow hill]

more VR in Python for you folks :
https://www.youtube.com/watch?v=4Q2f0dKh8vE

[dawn quiver]

I have idea of pen fight game

[stone wasp]

Pygame noob, current status on my project, I'm trying to figure out how to do multiple levels and think I'll need to rebuild the full thing to get that system working

[quasi dome]

https://youtu.be/6hp9-mslbzI

how can i make this in pygame

i couldnt find anything from google

[celest breach]

hey, i have a question, so i made a game with pygame and than made it exe with pyinstaller, but when i run it in other devices than mine it will think its a virus and it will not let it run, can anyone help me with that

[normal silo]

Do you understand what each line of the C# code is doing and the math being used?

[quasi dome]

im just a beginner who is looking for examples

i mean i cant write that code by myself

i need someone to explain

[normal silo]

I recommend learning some mathematics for game developers as it will let you write code for these kinds of things without having to constantly look up tutorials for specific things.

And translate from other code.

[grim copper]

i can help you

import math

def fixangle(angle):
    while angle < 0:
        angle += 360
    while angle > 360:
        angle -= 360
    return angle

def rotateIMG(img,angle):
    return pygame.transform.rotate(img,abs(360-angle))

def fromAngle(x,y,tx,ty):
    r = math.atan2(ty - y, tx - x)
    angle = float(math.degrees(r)+90)
    angle = fixangle(angle)
    x_vel = math.cos(r)
    y_vel = math.sin(r)
    return {
            "x_vel": x_vel,
            "y_vel": y_vel,
            "angle": angle,
        }

this is the code i used! its prettty simple
plug in the x,y of the player and mouse like this:-

angle = fromAngle(playerX+playerWidth,playerY+playerHeight,MouseX,MouseY)["angle"]

and then rotate the img of the player hand using the rotate img function

[grim copper]

i legit did tht to get this above code; it was originally in java so i converted it to python

works great for 2d fps bullets and gun based games

[celest breach]

m

[shadow bone]

I made this over the last 2 days, still working on it

Commandline version of paper's please 😄

You can check out the source code or play it yourself here

https://github.com/Buxx0/Papers-Please-in-Python-console

Would love any reviews, or any comments about the code! I'd love to improve as much as possible

[robust hearth]

Hello, does anyone know any good templates for games?

[median socket]

Are there any game engines that use python?

[vagrant saddle]

a lot, but fewer are built for python like pygame, arcade, Panda3D or Harfang3D

[normal silo]

Don't use --onefile and if that does not work, contact the anti-virus providers, or sign your executable (if on Windows).

[median socket]

I get what you mean by not alot of game engines are for python but those are libraries im looking more for a game engine like unity or the unreal engine running python (if it exists)

[vagrant saddle]

probably blender game engine then

[celest breach]

is there anyways to make it a onefile after so the problem will be fix and its in onefile, because i don't know how but other programs don't have this problem, its only with python

[deep fox]

Vector object not callable? how do i split. extract values from this? Im pretty sure it spits out a 3vector.

[dry flint]

only python or other language

[eternal ice]

Looks like you made it in Unreal Engine 5. Insane work

[shut wren]

Very interesting

[snow hill]

1 coder & 2 3D artists

(plus a couple of assets found on cgtrader)

[shut wren]

🙂

[zinc vortex]

if anyone is free i have a question in #help-ramen

[celest breach]

wait so you are in it too?

[snow hill]

I’m the guy wearing the VR headset, yes

And the coder who implemented the dogfight is a coworker 🙂

[celest breach]

wow

[candid zephyr]

pygame noob here, im curious if its possible to make snake on a xyz plane (aka 3d) instead of on a xy (2d) plane with relative ease

[blissful goblet]

if player.y > map_level:
  chaser_y += 1
if player.x > chaser_x:
  chaser_x += 1
if player.x < chaser_x:
  chaser_x -= 1
if player.y < map_level:
  chaser_y -= 1

looking at this is triggering me, there must be a way to write it in one or two lines

[dawn quiver]

No

[dawn quiver]

def compare(pos, other):
    return (1, -1)(pos > other, pos < other)

charser_x += compare(player.x, charser_x)
charser_y += compare(player.y, map_level)

This is what I think of, you may or may not find it neater

[blissful goblet]

interesting not necessarily neater to me, but thanks

[dawn quiver]

can somone one knwo a good free tutorial video fighting game when you do hit box and IA ennemie please?

[candid zephyr]

could you elaborate on why that may be difficult?

[dawn quiver]

Pygame isn't made for 3d games. It involves more math than you may be assuming. Even drawing a rotating cube is a lot of work with pygame, we have some examples you could look at, though.
https://github.com/Matiiss/pygame_examples/tree/main/pgex/examples/3d_cube

Pygame is pretty barebones, it doesn't support loading OBJ files.
You'd have an easier time using pygame with moderngl/opengl for anything 3d related.

There are specific libraries for 3d games you could take a look at.
https://www.ursinaengine.org/
https://www.harfang3d.com/en_US/
https://www.panda3d.org/

[candid zephyr]

What is a "more math than im assuming", is this linear algebra type math?

does that math get easier with using ursinaengine to name an example

[gray ore]

looks pretty good

[willow echo]

What's the best approach in splitting online functionality for a battleship game?

The approach i can come up with is that there's a game class and theres a function that listens for messages in another thread. that class controls who's turn is active and such

[median socket]

thanks!

[dawn quiver]

you could send moves like b4

whenever someone sends a move

the other person now takes their turn

so whoever sends a move dictates whos turn it is

This is just a guess

I figured less things to send over the network the better

well in battle ship isn't the state static after setup?

so you could send each others boards and merge them together

then everything is pretty much client side

lol its weird

like playing a game with youself

[plush forum]

Hello if someone are good with pygame if he can help me with a weird problem im in #help-corn thanks

[late field]

can i make 3d and realistic game with this app @round obsidian @viscid venture @idle yacht @dense hare

[round obsidian]

Realism isn't a matter of any one app but the amount of development time and effort put into it. High end, realistic 3D games are not made by any one person, but teams of dozens or hundreds of people.

[zinc vortex]

if anyone is free I need some help in #help-coconut

[dawn quiver]

does anyone want to test my first project its a rock paper scissors game but all made by myself and not in cmd its in its own window with buttons if you want to test it then dm me

[hoary scaffold]

hey
what's the best 3d game library for python ofc

[short cape]

my guy i noticed this channel only now

does python get used for 3d games?

ive never heard of it or seen it

[normal silo]

Yes.

[short cape]

which platforms

or workspace, idk how to call it

[sweet shard]

There's not a best but Ursina, Panda3d, and Harfang3d are great libraries to look into

[hoary scaffold]

oh ok thanks

[golden zealot]

Guys where can I learn Game development?

[stark dagger]

Hey

[golden zealot]

Guys help

[tranquil girder]

What part of game development?

[vagrant saddle]

the learning part i guess

hides

[vagrant saddle]

i think there were some books about gamedev in there https://pythonbooks.revolunet.com/

[golden zealot]

I dont know anything about game dev. I want to start
I looked at CS50's Introduction to Game Development but that certificate will not get me a job.

[lilac sigil]

I suggest you start out with a Lua-Based Platform and make something then move bigger out of that platform (also you have 90% of the tools needed to make a game on those platforms)

[cosmic cobalt]

Hello.

I need help.

import tkinter as tk
from tkinter import ttk
from tkinter import *
import time

lollipops = 0
count = 0

def clicked():
global count
global lollipops
count = count + 1

label1.configure(text=f'You now have {count} candy!!!')

if count > 19:
    count = count +1

if count > 49:
    count = count +2

if count > 99:
    custom_button1= ttk.Button(windows, text="Trade in 10 candies for 1 lollipop!", command=lollipop)
    custom_button1.grid(column=1, row=1)

def lollipop():
global lollipops
global count

label1.configure(text=f'You now have {lollipops} lollipops!!!')
count = count - 10
lollipops = lollipops + 1

windows = tk.Tk()
windows.title("Candy Clicker Alpha")

label = tk.Label(windows)
label.grid(column=0, row=2)

label1 = tk.Label(windows)
label1.grid(column=0, row=1)

custom_button = ttk.Button(windows, text="Click on me to get free candy!", command=clicked)
custom_button.grid(column=1, row=0)

windows.mainloop()

This is currently the code I have.

[copper nebula]

Gotta pre-fix that with ```py for a formatted code block

[cosmic cobalt]

But when you buy a lollipop, the game just breaks.

Like the code just does not make sense.

[golden zealot]

Thanks

[untold sentinel]

Anyone know where I can find some big, decent quality tilesets for a top down game?

[cosmic cobalt]

Can someone help me at help-kiwi?

[cosmic cobalt]

#help-peanut

[fallow glade]

subreddits like r/gamedev often have links to free asset releases or promotions

[supple nest]

Hi, is there anyone who wants or can try my python game and mabye tell me if i did something wrong?? 🙂

[untold sentinel]

Nice

[untold sentinel]

Any good guides or tutorials about large, scalable pygame projects?

[frozen dawn]

Is there any alternatives to Pygame

[livid marsh]

Arcade is what I'm testing out

https://api.arcade.academy/en/stable/index.html

[dawn quiver]

This comes from experience, we are working on a guide rn but its incomplete
https://pygame-guide-for-sneks.github.io/

[frigid jewel]

lots

[pliant siren]

ahhh

[pliant siren]

really awesome

[pliant siren]

go and learn then

[smoky stump]

can somebody help me?

i want to code a 2D player movent system but if i test it the figure is cloning itsself

in pygame

[tranquil girder]

you should fill the screen to clear it
so the structure should be something like this:

screen.fill(clear_color)
screen.blit(...)
pygame.display.update()

in the while loop

[smoky stump]

Thanks

[snow hill]

https://www.youtube.com/watch?v=Ti6xMY36guM

[untold sentinel]

When building a scalable PyGame project

I'm trying to think my way towards some best practice

It looks as though the usual strategy is to use a massive finite state machine to determine which "domain" of the game is currently visible (the game proper, or the save game screen, or an item screen, and so on)

This solution isn't tremendously scalable though. Nesting finite state machines is a little better. You can have a main "game" object which stores its display state, toggling between "pregame menu", "main game", "pause menus", and so on. Each of these "domains" of gameplay are themselves an object with their own render() methods and their own FSMs to control what is and isn't visible

Does this all sound logical?

[gaunt monolith]

Nested scenes makes sense yes. I'd actually make it a stack of scenes though, so you could do something like push a new scene on top, then when that's closed return to whatever is previously shown.

Maybe also add a flag on each scene class which determines if the next scene also needs to render (game scene rendering behind the menu).

[smoky stump]

import pygame
from sys import exit

#important Variables
pygame.init()
screen = pygame.display.set_mode((1000, 500))
pygame.display.set_caption("GAME")
clock = pygame.time.Clock()
player_x = 500
player_y = 250

#Variables

#Player


while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()

    player = pygame.draw.rect(screen, "#93E9FF", [player_x, player_y, 40, 40])
    player_rect = pygame.Rect.move(player, 500, 250)

    if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_UP:
            player_y -= 5

    pygame.display.update()
    clock.tick(60)

if i run this code the rectangle is cloning itself up when i click the up button

i want a player movement

Can smbody help me?

i fixed it

!!!

[desert beacon]

how did you fix it im having the same issue

[tranquil girder]

See my answer further up

[smoky stump]

Before u drawing the rect u need to fill the the screen with any Color

[desert beacon]

oh ok

[desert beacon]

thanks

[cosmic vale]

would anyone be interested in collaborating on the creation of a game?

[dawn quiver]

What kind of game?

[cosmic vale]

Any kind of game

[manic anvil]

anyone working with Psyhopy to build experiment?

[cosmic vale]

you mean Psychopy?

[manic anvil]

ah yeah, I was typo..

[sudden mantle]

is ther a game engine for python? something like unity

[dawn quiver]

You could use godot with python bindings

[vagrant saddle]

maybe blender game engine too

[brave marten]

Hello, I'm sure this question may have been asked before, but is Pygame suitable for moderately large projects? For example, would it be possible to achieve something like Mother 3 in Pygame without large performance drops?

[grizzled basin]

I wanna make a trading card game in python with visual aspects in the vain of magic the gathering and hearthstone, where would I begin? I know like, the basics of normal python but nothing when it comes to game development in python or visual aspects

[frank field]

Hey @sudden oak!

It looks like you tried to attach a Python file - please use a code-pasting service such as https://paste.pythondiscord.com

[normal silo]

Try making some terminal games such as tic-tac-toe, battleship, and a text-adventure. Then try learning pygame and some basic mathematics for game developers. Make some 2D games such as Pong, Breakout, Tetris, Zelda-like (this can become as complex as you want it to). You then should have enough skills to be able to make a simple 2D card game simulator. Then if you want to get into 3D make sure you have a more solid understanding of game mathematics (linear algebra mostly), and then try something like Ursina / Panda3D. You will also need to learn shader programming at some point for visual effects (GPU programming), but you can leave the visuals for later.

*You also need to learn how to make some game AI to play against, this will involve learning how to make things like a tic-tac-toe AI, battleship AI, chess AI, etc.

The math is nothing too crazy and there are many resources on it: https://www.youtube.com/watch?v=DPfxjQ6sqrc

https://www.youtube.com/watch?v=MOYiVLEnhrw

[grizzled basin]

I don't really mind about the visual or audio sides, ill probably just do copy and pasted visual aspects, this is actually probably more a proof of concept for a physical card game tbh

[normal silo]

I would print the cards and test the idea that way.

[sweet shard]

Yes but if you really worried about performance Arcade would probably be better

[forest cargo]

anyone have a valid link to the pygame discord?

[forest cargo]

ping me if you do

[vagrant saddle]

there's an invite at the bottom of https://pmp-p.github.io/pygame-wasm

[forest cargo]

thanks

[untold sentinel]

Hey gamedev people! I'm building a topdown adventure game as my software development group project

I'm doing lots of reading of course, but I'd love some tet-a-tet with some experienced game devs so I might get a fuller picture of what's in store

I guess my most important question is: what are the questions I need to be asking? What do I not know that is key?

Beyond this, what are the core components of a topdown game? What sort of organizational structure should I use? In what sequence should we be implementing it?

[dawn quiver]

Hey im new to this Python coding thing And im trying to make a game And i want to make like a ability to make IT snap on to a player so if anyone could help me please do

[neon tinsel]

Hey yall, curious about how you would model an item class for game items that all do different things

I want to make an item class, but items are such complex objects. Things like price, rarity, durability, function, name, whether or not they can stack, etc.

Does anyone have an example

Yea

[frank field]

Hey @dawn quiver!

You either uploaded a .txt file or entered a message that was too long. Please use our paste bin instead.

[neon tinsel]

I'm reading about Composition vs. Inheritance, and it looks like composition would be the best way to do this. I would love an example though

[tranquil girder]

Both are bad and add unnecessary complexity. You can just use a dict or a class instead

[neon tinsel]

I don't think you understand the question

Each item would have different funcitonality

They would all have names, prices, durability, etc.

But how would I expand the item class to also include functionality for different items? For example, I could subclass and make a RestoreHealth class and make it so items that restore health are in that class, but then what about items that do very specific things?

A dictionary wouldn't really be helpful for complex functionality for different items

[normal silo]

Do all items share some common functionality?

[neon tinsel]

Not necessarily

They all have similar data, but they might have different functions

[normal silo]

Make a class to hold the common data. Then implement 3 items manually, externally (just plain old functions). After that you can try to design some kind of generic system.

If you are unsure how to design something just do it the most direct, non-generic way. Then after you have a few samples, you can try to find commonalities and design around that. Guessing the design up front is error-prone (and a waste of time (unless it's some giant project with a big team which requires forward planning for coordination) (or you already made something similar before in which case you can predict what the design will be like with high enough accuracy (this is how generic game engines are born))).

[neon tinsel]

I see

[normal silo]

In game dev this is often summarized as "make the game instead of making systems," but I find that lacks the important detail that you can build systems out of the samples gained by implementing some of the parts (generalization).

It is similar to how in mathematics one plays with specific cases before generalizing later as your intuition / idea of how it should be built will be more informed at that point.

[tranquil girder]

I've made that kind of inventory system before. I just assigned a function called on_use to the items to customize what should happen. I just used a dict for each item, containing name, description, value, effect, etc.

[neon tinsel]

@tranquil girder, how did you store the effect? did you store python code in a dictionary?

[tranquil girder]

You can refer to a function in a dict, or use a lambda, or a string that get used by exec, or some custom solution

When I made a complex spell system for a different game, I used a Spell as a base class just to set defaults and made every spell inherit from that one class. If you're going to use inherence, you better keep it simple and avoid multiple levels deep inheritance and definitely avoid multiple inheritance. Keep it simple. My spells were kind of like complex items which had state like cooldown, damage over time, side effects and combinations. So using classes can work too

[neon tinsel]

So for your spell system, you had subclasses for specific spells, and you would have class functions that would do whatever the spell did?

[normal silo]

Polymorphism via subtyping.

An example would be a bunch of spells each having a cast method. That would be their common interface.

If you find yourself having an if-else chain where each if checks the type of spell, you probably want polymorphism.

[neon tinsel]

Got it, I'll look into that

[normal silo]

The more specific term for what is happening when you call cast on a spell is dynamic dispatch.

[warped elk]

Can't make an executable(.exe) from a Pygame Code!
Install Command: ```py
pyinstaller --noconfirm --onefile --windowed --icon "G:/Python Projects/Pygame/Assets/spaceship.ico" --name "Space Escaper.exe" --version-file "G:/Python Projects/Pygame/Spce Escaper Version File v1.txt" --add-data "G:/Python Projects/Pygame/Assets;Assets/" --hidden-import "pygame" "G:/Python Projects/Pygame/main.py"

**Problem:** The Issue is when the `.exe` created and I try to run it, shows this Error! \**Attachment\**

Someone help me!

I used pygame to make the game

[dawn quiver]

Hello

[robust hearth]

Was it written in a ve?

[warped elk]

wdym? venv?

if venv yes!

[robust hearth]

Did you install pygame throug pip in it?

You need to install pip in the venv

[warped elk]

yeah! pip install pygame!

[warped elk]

How?

@robust hearth

[robust hearth]

You need to install it in the venv directory

[warped elk]

How?

[cursive dove]

why not design roblox game

[robust hearth]

I think you choose to install pip.exe in the venv directory.

[hybrid raft]

Hello Everyone, I am facing difficulty to automate calculating the sub-surface damage on glass surfaces. I have to find the inner and outer diameters as shown in the figure. I have a problem finding the inner diameter (green), it has to be the area with minimum/no scratches from the center.

[warped elk]

How can I install it?

Btw, there are no venv directory in my pronect directory

[manic oyster]

object oriented programming

[unreal river]

You need to activate your venv in your command prompt or your terminal then type pip install pygame on the command prompt or the terminal that you have activated your venv

[raw shadow]

okay so i've got this code

def draw_oscilator(height, width):
    for x in range(1000):
        y = float(height * math.sin(x * 0.1) + width)

        pygame.draw.circle(screen, (255, 255, 255), (x, y), 1, 5)


running = True

height_flag = False
width_flag = False

height = 10
width = 10

# set fps to 10
pygame.time.Clock().tick(1)

while running:
    pygame.Surface.fill(screen, (0, 0, 0))

    for events in pygame.event.get():

        if events.type == pygame.QUIT:

            running = False
            pygame.quit()
        if events.type == pygame.KEYDOWN:
            print("\033c", end="")

            if pygame.K_d:

                draw_oscilator(height=height, width=width)
                
            if pygame.K_h:
                height_flag, width_flag = True, False

                print(f"width: {width_flag} height:{height_flag}")

            if pygame.K_w:
                height_flag, width_flag = False, True

                print(f"width: {width_flag} height:{height_flag}")

            if pygame.K_UP:
                if height_flag:
                    height += 1.0
                if width_flag:
                    width += 1.0

                print(f"width: {width} height:{height}")

            if pygame.K_DOWN:

                if height_flag:
                    height -= 1.0
                if width_flag:
                    width -= 1.0

                print(f"width: {width} height:{height}")

            # if pygame.K_c:
            # print("\033c", end="")

        pygame.display.flip()
``` and the issue with this is, my global variables arent being updated. I wrote height_flag and width_flag as globally false, but for some reason, within the events loop, they're all being called for some reason

also, what i draw ends up disappearing, idk where to put the refresh black

[warped elk]

Ik but If I installed in my PC it'll work in my pc

not yours if you don't install pygame

[unreal river]

Is that what you want?

You could use setuptools to do it or create an msi

[warped elk]

I want to make an executeable that wonk all computers

without even having Python

Like Other Applications

[warped elk]

How?

[unreal river]

@warped elk
msi is an installation program like a zip file with options, it extracts the files for your program only works on windows

setuptools you publish your game on pypi in order to install pip but you have alot to learn

[warped elk]

Can you send me how can I use msi?

[warped elk]

@unreal river?

@unreal river I have these files in the project directory!

Error:

[vagrant saddle]

you are flipping only when an event occurs, drawing and pygame.display.flip() should happen in while running not the for loop

[raw shadow]

oh wait mb yeah i fixed that

[dawn quiver]

import turtle 

wn = turtle.Screen()
wn.title("Pong Emil")
wn.bgcolor("black")
wn.setup(width=800, height=600)
wn.tracer(0)

#Paddle A
paddle_a = turtle.Turtle()
paddle_a.speed(0)
paddle_a.shape("square")
paddle_a.color("white")
paddle_a.shapesize(stretch_wid=5, stretch_len=1)
paddle_a.penup()
paddle_a.goto(-350, 0)

#Paddle B
paddle_b =turtle.Turtle()
paddle_b.speed(0)
paddle_b.shape("square")
paddle_b.color("white")
paddle_b.shapesize(stretch_wid=5, stretch_len=1)
paddle_b.penup
paddle_b.goto(350, 0)

#Ball


#main game loop
while True:
    wn.update()

why there is a line?

[vital coyote]

Hi, it’s possible to make a surface (in pygame window) who content many objects on pygame please ?

[dawn quiver]

parentheses is missing in paddle b code for penup

[fresh lance]

In pygame, how can you just change the textures?

[crimson hound]

Exponential snake, with reverse gear

Exponential because every time you eat an apple, you get 50% longer

I'm mildly 🅱️ad at snake

[desert beacon]

#help-pancakes with pygame collisions

[dawn quiver]

What do ya think of this Milk Carton Sprite I am incorporating into my game

[dawn quiver]

why are the controls so fast?

[crimson hound]

wdym?

the snake speed?

well, it's more spicy this way

[dawn quiver]

True

It's a bit more exciting

[dawn quiver]

Can someone help me in #help-pancakes

[sweet shard]

Looks good 👍

[dawn quiver]

Thanks

[dawn quiver]

So I was gonna make a retro guitar melody then opened piano and one thing led to another and I made this song for the menu screen

Opinions?

[untold sentinel]

How does one handle multiple game screens in a PyGame game, and, how does one handle routing input events to the right actions

Is it something like...

class Controller():

  def __init__(self) -> None:

    self.currently_focused = player_object
  
  def get_events():

    for event in pygame.event.get():
      
      if event.type == pygame.KEYDOWN and event.key == pygame.K_UP:
        self.currently_focused.on_up(event)

      if event.type == pygame.KEYDOWN and event.key == pygame.K_DOWN:
        self.currently_focused.on_down(event)

      if event.type == pygame.KEYDOWN and event.key == pygame.K_LEFT:
        self.currently_focused.on_left(event)

      if event.type == pygame.KEYDOWN and event.key == pygame.K_RIGHT:
        self.currently_focused.on_right(event)

class Game():

  def __init__(self) -> None:
    
    self.state = 'main-game'

  def run(self):

    while True:

      if self.state = 'main-game':
        self.render_main_game()

      else if self.state == 'main-menu':
        self.render_main_menu()

      else if self.state == 'save-menu':
        self.render_save_menu()

      else if self.state == 'load-menu':
        self.render_load_menu()
      
      ...

[vital coyote]

Hi, just a simple question anyone know if it’s possible to run a client websocket at the same time than a pygame window? I can’t make that because I have a “await” who wait to receive the information. That stop the pygame loop. Thank you for your help.

[fallen patio]

Whats the best tutorial for learning pygame

[desert beacon]

#help-cheese with pygame scores

[desert beacon]

https://www.youtube.com/watch?v=AY9MnQ4x3zk&t=371s

[lucid zephyr]

guys

question

should I learn C if I want to dive in game dev?

[meager plover]

i was drawing and i remeber a python lol i hope it make you cheers guys.....

[finite solar]

Not really you can just use a game engine like Godot, Unity or Unreal.

[dawn quiver]

Hey I have a question for Pygame. Where should I be keeping my Event Handlers?

        #Event Handler
        for event in pygame.event.get():
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_SPACE:
                    print('Key Pressed')

OHHH

im dumb

nvm

I had 2 event Handlers that's why

[light flax]

event.get() exhausts the pygame events that are waiting to get handled. In my limited experience I use gameobject (unity style) classes with their own update() and render() methods which can have their own event handlers, reading the events from a centralized list of events in a single Gamestate instance that is updated with event.get() once per tick. Then you can categorize your objects into Scenes, and have a single infinite loop in your program entry point that update()s every object in your active scene

[dawn quiver]

oh thanks

[light flax]

you can even categorize your "subsystems" this way, e.g. in a jrpg style game the overworld scene could have a PartyController gameobject with an event handler that handles party movement, the battle scene could have a similar BattleController with an event handler for selecting spells and attacks etc. This has the bonus side effect that makes your game modularized instead of hardcoded (handling game systems as if they were regular gameobjects like your player character, I mean)

[blissful goblet]

anyone got tips for improving player retention

[tranquil girder]

Do playtesting to figure out why they quit

[dawn quiver]

Can someone help me with this Event handle?

[dawn quiver]

Put up forums for "Ways to make the game better"

[blissful goblet]

[blissful goblet]

discord bot game, everyone i give the game to test just says its really good

and half of them are just random people i dont know, pretty frustrating

[cold geode]

Was following this tutorial, it's great but something odd is happening in the drawing with rectangles section, because he said that setting a border width extends beyond the rectangle, but in my case it's not doing so (used different color to demonstrate)

Same lines of code as in video

    pygame.draw.rect(screen, 'Pink', score_rect)
    pygame.draw.rect(screen, 'Gold', score_rect, 10)

Not really game breaking, but it is weird as even the docs say the border edges will grow

[dawn quiver]

Hey I have a question

Why when i put this command it fills the screen white for a second and stops the music completely

            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_SPACE:
                    Game_Started = True
                    print('Game Has Started')
                if Game_Started == True:
                    WINDOW.fill(WHITE)
                    pygame.display.update()
                    pygame.mixer.music.stop()

But then it still runs this code

def draw_window():
    WINDOW.fill(WHITE)
    WINDOW.blit(Bg_Image, (0, 0))
    Quick_Sprite.draw(WINDOW)
    Quick_Sprite.update()
    WINDOW.blit(Title_Image, (0, 0))

    pygame.display.update()

How do I terminate the second code so that when "Game Starts" the Sprites get off the screen completely instead of for a quick second.

[neat forge]

I'm really new to programming my day job is a model maker and machinist but I'm trying to learn Python on my free time. One of my interests is games. I'm stuck here at the beginning and I'm not sure why I keep getting an error ModuleNotFoundError No module named 'settings'. The Traceback is calling to the main file but I want it to call up the settings file which has the map into the main .

[vagrant saddle]

it probably cannot find the settings.py file which should be sitting next to your main.py

[neat forge]

I'm new to VS code and I think it's how I'm building my files as text and then converting them over to python files.

@vagrant saddle thanks i'll keep digging

[crimson hound]

Anyone have a decent explanation of the ECS pattern? I watched the video by The Cherno but I don't think I get it

[dawn quiver]

Can someone help me in #help-lemon \

[neat forge]

@vagrant saddle it was not seeing the right file format and I had a couple other little errors fixed them and now I have it working!

[frigid oxide]

pls tell me how to make karel clean up everything

[normal silo]

https://www.youtube.com/watch?v=zrIY0eIyqmI

[crimson hound]

Thanks, I'll check it out

[normal silo]

OOP bundles functions and data into one things, ECS goes the complete opposite direction, keeping them separate.

The idea is to take objects that would traditionally be big and break them down into micro components of which you then have many. And systems select tuples of components to operate on.

The hope for this is to allow creating all kinds of objects via extreme compositions (many small components).

(And therefor extreme reuse)

The effect is that ECS games can feel very sandbox-y and allow a separate team of game designers that are not programmers to experiment with ideas.

However, in practice ECS's tend to not be pure ECS's, they are often hybrid systems due to the nature of games requirements.

[crimson hound]

I guess one question I have is -- how do you attach dynamic/polymorphic behaviour in this way of storing just data in components?
For example, I'm making a game with mechanics similar to Factorio, where you're building

So I have "belt" entities that carry items, "inserter" items that insert things into factories, and "factories" (like smelters, assemblers, chemical plants etc.) that turn one kind of item in another. As I understand it, this is how I might structure the entities:

Belt (Slow):
    - conveyor
    - item_source
    - item_sink
    - render

ItemInserter:
    - render
    - electricity_sink
    - ???

SteamTurbine:
    - electicity_source
    - fluid_sink
    - render

Cutter:
    - electricity_sink
    - item_sink
    - item_source
    - render

[normal silo]

The Overwatch video covers some of that though.

[crimson hound]

...so I have different kinds of item_sinks, for example. Some factories accept only things that are smeltable, other slots accept only fuel, others are even more dynamic.

Would it be incorrect to place some kind of strategies or other polymorphic objects as component values?

[normal silo]

Components have multiple things in them and that could include booleans/enums/flags (further typing).

But they could all be separate components.

[crimson hound]

For example:

SinkValue = Callable[[Item], bool]

def heater_sink(item: Item) -> bool:
    return item.id in FUEL_IDS

sink_componentzs[1234] = heater_sink

furthermore, in some factories the behaviour depends on the internal state of the machine (i.e. what crafting recipe is selected)

maybe I should watch the video first though 🙂

So I guess I'm just struggling to find a way to encode all of that as a single piece of "data"

[normal silo]

Polymorphism can be used inside components as they can technically have anything except logic in them (which would make them OOP style objects).

Since ECS's are usually implemented in more low level languages the polymorphism would come in the form of a bit field (including booleans) / tagged union.

[crimson hound]

tagged union sounds reasonable

well, I don't really need it to be blazingly fast... I'm using Python of all things

[normal silo]

Yeah so it would just be a class with no methods.

(dataclasses can be used)

I find enums really annoying (and limited) to use in Python, so IDK.

Python wants OOP, while ECS is moving towards DOD (setting up for it).

[crimson hound]

So I guess I would have something like ```py
@dataclass(frozen=True)
class ItemBlacklist:
forbidden: Collection[ItemId]

@dataclass(frozen=True)
class ItemWhitelist:
allowed: Collection[ItemId]

@dataclass
class ItemSinkComponent:
item: ItemBlacklist | ItemWhitelist

[normal silo]

Since it's going to be dynamic and slow (not fixed size stuff), you could just use inheritance anyhow.

Got isinstance.

[crimson hound]

for example if a chest runs out of free slots, it's changed to ItemWhitelist([]), and when a free slot is available it changes to ItemBlackList([])

[normal silo]

Yeah you mutate the components that the system queried. However, I recommend double buffering game state.

So instead you create a new component from the old one that has the changed applied.

Then after all the frame processing is done, the buffers swap.

[crimson hound]

I actually already have a system of reactive variables which are double-buffered, that might be useful

although that might be overengineering it

[normal silo]

Double buffering state sets you up for networking too, because you can add more buffers, then stuff like rewind is easy to implement.

As avoids the updating based on some old state and some new state.

(Order of entity updates)

[crimson hound]

so the purpose of double buffering is to always show a consistent state, right?

[normal silo]

Have you implemented Conway's game of life before?

[crimson hound]

yep

if you don't have a double buffer, the state will change from under you and the computation will be just wrong

[normal silo]

You update based on the previous state and write into a new buffer, because it's suppose to happen all at once.

And there is no "correct" order.

[crimson hound]

yeah makes sense

oh another question, how do you know when to delete a component?

[normal silo]

Ordering system updates is much more manageable.

[normal silo]

In low level implementations you don't, it just marks it as unused.

So when another entity is spawned it can use it.

(allocating and freeing all the time is slow (and memory bugs))

[crimson hound]

well, how do you know when to mark it as unused?

I guess in C++/Rust you can make a proper destructor

but using __del__ is kinda iffy

and also unpredictable

[normal silo]

When you call "kill" on an entity, the entity has a list of components associated with it.

No destructors.

Destructors are an OOP thing.

You make a giant list of components, once.

[crimson hound]

not necessarily OOP I suppose, Rust has drop

but yeah that requires polymorphism

although maybe that is what OOP is

[normal silo]

Zero memory management required (also known as region based memory management).

OOP ties the lifetime to each individual thing.

While in DOD we work with groups of things.

Since computers always work with groups of things.

[crimson hound]

this all sounds kinda similar to relational/logical programming

an entity is related to multiple components and such

[normal silo]

OOP makes no assumptions about an object's use which is why it must clean up and all that and encapsulate.

DOD realizes that objects don't tend to exist alone in the aether, but in a context and in a group.

With some pre-conditions.

ECS is very database-like.

(There are ECS databases)

And some are using it beyond video games now.

[crimson hound]

SQLite game engine when

[normal silo]

Yeah that is already a thing and is used to implement some of them.

IDR the examples though.

Did not bookmark them.

[crimson hound]

that's interesting

I guess SQLite is faster than it sounds, especially when in RAM

just a BTree thing

[normal silo]

It's probably better to not use SQLite for speed, but it's def. a quick solution that allows a lot of flexibility / hackability and saving game state, etc.

It's associated arrays / tables all the way down.

[crimson hound]

anyway, thanks for clearing some things up. I'll go watch the overwatch talk

[normal silo]

(And ECS systems also have the same indexing CS problems as databases and such depending on how you design it)

(Btw the allocating a big array once / region based memory management is why C programmers don't feel the need for garbage collectors and such (if they are doing memory management well rather than malloc and free everywhere (one can make memory management a non-issue)))

(Still the other issues with C though)

[normal silo]

Silly idea, but ECS using Pandas...

[crimson hound]

damn, I'm half way through the talk and it's a gold mine of new information

[normal silo]

IDR if the talk mentions it at all, but the thing that is really going on here is making "objects" pure by simply not having functions at all, and rather than each object updating itself like in OOP, systems view entire groups of objects at once resolving cross-cutting concerns.

[crimson hound]

yeah that is clear to me

they're not really objects anymore, more like data structures

I suppose this is one way to approach the "expression problem" where you have multiple types and multiple behaviours

[normal silo]

These benefits can be achieved without a full blow ECS system, but an ECS is very generic like a database making it good for large teams and engines like Unity where there are no assumptions about the games and simulations being made with it that can be used to to simplify.

[crimson hound]

So I ran into a bit of an issue with ECS: some of my entities are located on a square grid. As I understand, they should have a component like location: (x, y). But what if I want to find all entities located at a particular point? Would it make sense to keep a hash map mapping points to entities

I could of course scan all the location components, but that's going to be O(N) for every search

[grim hound]

when I try to run this code it shows me a attribute error: 'level' object has no attribute 'create_map' while it does?

is there a way to fix this

[crimson hound]

methods should be on the same level as __init__

yours are indented 1 level too far

[grim hound]

oh

so do i have to change what line is on?

@crimson hound

fixed it that helped

thx

[crimson hound]

!e
FYI: this is perfectly valid code, but it doesn't do what you meant. you can indeed create functions inside of other functions:

def make_adder(n):
    def add(m):
        return n + m
    return add

add5 = make_adder(5)
add7 = make_adder(7)
print(add5(100))
print(add7(1000))

[frank field]

@crimson hound :white_check_mark: Your 3.11 eval job has completed with return code 0.

001 | 105
002 | 1007

[grim hound]

👍

[light flax]

Does anyone have experience with licensing art assets under a different license than the source code ? I have my code under AGPLv3 and my assets under CC BY-NC-SA 4.0, with notice of which license applies where in the README. The AGPL license text file is in the project root and the CC license file is in the art assets directory, I'm pretty sure that should be enough but just to be sure...

[crimson hound]

sounds good to me

(IANAL)

[dawn quiver]

That abbreviation is.. questionable.

[crimson hound]

yeah, you'd think it's some new Apple gadget...

but I think it's pretty standard at this point

[signal creek]

What I'm working on currently

[grim hound]

@crimson hound

same problem again but with a different attribute

they are all lined up with the __init

nvm

fixed it

👍

[untold crow]

Hey, I'm sort of new to Python myself and interested in gaming. I've made 2 games using YouTube tutorials and pushed them to GitHub. I'm hoping to learn and develop my coding skills with everyone here. 🙂

[vagrant saddle]

you should not need await for reading a client socket, they can be made non-blocking.

[normal silo]

You would have a 2D array where each cell has a list (or set) of entity IDs (only allowing entities with the grid component). Systems can query for all entities in a cell via that grid in O(1). When a system moves an entity with a grid component (from one cell to another) it must make sure to update that grid and the entity (some function somewhere that moves between two cells that each system can reuse). The grid is a way to do faster queries (effectively an indexing method like in a database but in this case spatial) and you will probably have several such indexing methods for various systems to use (probably trees or hashtables). These indexing objects can be passed to systems on creation.

You can also do what Overwatch did with the singletons.

[crimson hound]

well, in my case the map is quite sparse and very large, so maybe an array is not the best choice

[normal silo]

Yea then it would be a sparse matrix if it's 2D, but same idea for 3D.

[crimson hound]

I guess there are special sparse arrays

[normal silo]

So yeah, row, col, value tuples.

(COO)

https://en.wikipedia.org/wiki/Sparse_matrix

There are many ways to do sparse matrices though, depends on what kind you think you will have. I would go with COO generically when unsure.

Oh, nvm, they have a different term, DOK.

(Hashtable version)

[crimson hound]

COO sounds bad for insertion/deletion

and I doubt I'll get significant caching advantages in Python

[normal silo]

Yeah I meant DOK (hashtable).

In general, just not storing empty cells (zeros) and instead tuples of row, col, value, but in the case of DOK the lookup/storage is done via hashtable (so really it's just a hashtable of row,col -> value, no need for a new data type).

COO in my experience has referred to either at times ((row, col, value) of non-zeros in general without more specific types like block or band matrices and such).

[proper peak]

it depends on what operations you do, e.g. if you do mat@vec then it's optimal to use, IIRC, CSR.

[normal silo]

Yeah it depends on if you want fast in-order iteration, or fast insertion / deletion.

Fast in-order iteration is key for matrix multiplication.

CSR/CSC is really good when one builds it once, and multiplies many times.

But for specific kinds of sparse matrices there are better.

[finite solar]

How much dependencies does pygame has?

[dawn quiver]

Hi!

I am a new one of this server.

I was unable to message in #python-discussion

[dawn quiver]

Many like 10 to 15

Anyone online

[unreal river]

yes

[finite solar]

Do you mean additional python libraries that are not in the standard one?

[dawn quiver]

?

[dawn quiver]

Hey, pygame is built on top of SDL and most of its implementations are in C. It doesn't have any Python dependencies other than numpy which you don't need in order to install it, you only require it when trying to use pygame.surfarray https://www.pygame.org/docs/ref/surfarray.html

[distant adder]

Looking for someone who could teach me some trigonometry implementing in pygame

[dawn quiver]

go to khan academy and find the trig courses there. It is free and you watch short videos that can help you learn.

[primal otter]

I have to do a mini game for a uni work, it have to use: loops, functions and lists. Any idea will be appreciate, in advance thanks you <3

[dawn quiver]

you can make something simple such as flappy bird, or does it have to be an original game ?

[plush wedge]

i made a quiz game….kind of

[primal otter]

Not have to be an original game

[primal otter]

Flappy bird, will required an UI? Isn’t it?

[dawn quiver]

you can make it with pygame

[primal otter]

But, it have objects or classes? Cause I don’t see it yet :(

[plush wedge]

i made a Pokémon quiz,its mostly if, else and input statements but its pretty good for me being brand new at python

[primal otter]

Ooh it’s a great idea!!! <3

[dawn quiver]

there is a guy on youtube who explains how to make it step by step, its not that hard

[plush wedge]

dont know how to loop it though so that it restarts

[plush wedge]

i can send you the link in messages if you wanna see the code

[dawn quiver]

i think i can help you fix that

[primal otter]

Nice! Thanks you both <3

[plush wedge]

you might need to check the file out in order to do so

[primal otter]

Yes :D

[dawn quiver]

thats fine, did u upload it somewhere

[plush wedge]

github

sadly i cant post it here due to the self promotion rule but i can message both of you the link

[dawn quiver]

ok you can message me

[raven heron]

As a senior python/c++/c# developer with 8 years of experience, I have rich experience with image processing such as
LPR, inpainting, segmentation and tracking and deep learning models such as MaskRCNN, fastRCNN, yolo, hyperLPR and so
on.

[dawn quiver]

hey guys

use unity

bestttt gggggaaaammmmmeeee engine

[robust hearth]

You could make snake with turtle

[barren frigate]

Hey can you message me the link please

[runic arch]

hello, If I want to make a simple game like tetris and make a multiplayer mode, available on android/ ios/ browsers.

Should I go for flutter, unity or javascript to achieve this?

[plush wedge]

sure

[dawn quiver]

Answering to MasterMole from #python-discussion,
It depends on your needs, what are some things you are looking for in a game library?

[finite wharf]

idk really. ive made a few simple python stuff before(calculating the mean of numbers using inputs, password guesser, other simple stuff like that) but they werent that fun in making so i decided i wanted to make a game. and i wanted to stick with python because i have no knowledge of any other languages.

[dawn quiver]

Pygame is barebones and gives you full control and flexibility over the loop, after a few concepts you generally don't need to look into the documentation for anything, nor does it enforce a particular paradigm, you don't need to be super heavily familiar with OO to use it
Has an active community dedicated to it as well, if that interests you
It has 0 Python dependencies other than numpy which isn't really a dependency, you only need it installed when trying to use the pygame.surfarray module. It's built on top of C

Arcade provides more utilities by default, but you may end up having to reach the docs more often. It's also pretty easy for beginners, which is its main point . Has quite a Python tech stack, pymunk and pyglet to name a few (but you may end up using pymunk in pygame anyways, so having it nicely integrated with the library can be nice)

[dawn quiver]

I can relate, those used to be something I found only moderately fun

So you wanted to make something that is entertaining to make?

And also presumably presentable, then games are a pretty nice option yeah

[finite wharf]

yes thats why i wanted to make a game

[dawn quiver]

https://youtu.be/AY9MnQ4x3zk
If you are going with pygame, this is considered to be the best introduction by many

There's this for arcade, https://realpython.com/arcade-python-game-framework/

[finite wharf]

i was just having second thoughts whether i should be going to making a game as i havent made anything like a game. even for very simple games , the code looks very complex

[dawn quiver]

Hmm, you know game dev isn't always the only way to have fun with Python

[finite wharf]

what else could i do

[vagrant saddle]

you can try pygame-web to have cross platform multiplayer

[dawn quiver]

So many things, it's amazing

Honestly, for me personally only 50% of the entertainment factor is what I do, just being able to share it and present it is the other 50%
Discussing things is great
For example here is the website I'm working on, https://starreviews.herokuapp.com/

So what I'd recommend is doing something you could show off, how about making a little Christmas tree printer, with colours and all that! Will be doable with what you know, and most importantly it won't require you to keep dedicating time just to learn a concept in order to use it, since these are things you know

Short answer: try making something, upload it to a site (like github), and then share it, even if it's small it is super entertaining when people give feedback (for me at least)
Or, maybe join in and do some weekly challenges, it's fun to compete with others who are also trying (on discord), and you can learn from their solutions too

I found making this fun, heh

[plush wedge]

ok i’m trying to implement a dice roll and then if the dice rolls a certain number i want it to determine the object picked up relative to the number and the game keeps repeating an action relative to if the user picks up the item when they decide not to pick up an item

[plush wedge]

ok so i had to adjust some things but i think it’s an improvement and no errors so far

[plush wedge]

that if statement is leftovers from a more bloated and complicated code

[finite solar]

You wrote player.lives == 3 instead of player.lives = 3 maybe that's why

[plush wedge]

WE HAVE MADE PROGRESS

lol like my undertale reference

oh yeah can’t see it

[mystic epoch]

is a 3d python game without using prefabs and premade assets doable?